Hallo on 2020/1/9 16:35, demerphq wrote:
$str=~/(\d+)\s(\d+)\s(\1*\2)/$1 refers to the capture buffers from the last completed match, \1 inside of the pattern part of a regex refers to the capture buffer of the currently matching regex.
This doesn't work too.perl -Mstrict -le 'my $str = "2 3 6"; print "true" if $str=~/(\d+)\s(\d+)\s(\1*\2)/'
nothing printed. Regards.
